Alright, I just did a few sets of "spider" or "Segovia" scales up to seventh fret and back down to first and then played a little of "Sitting on Top of the World" in dropped D. Then I tried some "hard" chords -- the ones I haven't been able to do (Dm and C). What's notable is that I do better on what I already can play -- I can change chords faster, find   notes up the neck with more precision -- that's the scales! For now, I still can't get a good sound out of a C chord or a D minor -- the problem seems to be lack of strength in the index finger -- it hurts in the middle joint if I press hard enough to really depress the string in these hand positions. I can play an F without a barre (which doesn't do me much good without a C)